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本文研究了稀土及稀土－硼对ＺＡ２７（含２７％Ａｌ的锌基合金）的显微组织及强度和韧性的影响，分析了稀土及稀土－硼对ＺＡ２７的孕育机理，进而摸索出稀土的最佳含量范围。
In this paper, the effects of rare earth and rare earth-boron on the microstructure, strength and toughness of ZA27 (a 27% Al-based Zn-based alloy) were studied. The inoculation mechanism of rare earth and rare earth-boron on ZA27 was analyzed, Good content range.